GRB 110731A: Swift detection of a burst with an optical counterpart. Oates, S. R. ; Beardmore, A. P. ; Holland, S. T. ; Hoversten, E. A. ; Melandri, A. ; Mountford, C. J. ; Page, K. L. ; Palmer, D. M. ; Saxton, C. J. ; Ukwatta, T. N. Abstract Publication: GRB Coordinates Network Pub Date: 2011 Bibcode: 2011GCN.12215....1O